[Nicholas Carlini] programmed a C implementation of two-player Tic Tac Toe ... through the theory, so give it a read. In short, a maze of arguments handles the logic of the game while an embedded ...

Here’s another entry in the 7400 Logic contest. [Circuitchef] used gates and a few flip-flops to build a two-player electronic Tic-Tac-Toe game. The full details or shared in the PDF file he ...